Brake-backing plate



June` l0, 1930. v. BENDlx 1,762,710

BRAKE BACKING PLATE Filed March 23, 1927 mmgammn INVENTOR .uit

ATTORNEY f I N |x H6 Z VlNcElT BE D Patented June' 1o, 1930 i 1,762,710

UNITED vSTATES PATENT OFFICE VINCENT BENDIX, CHICAGO, ILLINOIS, ASSIGNOR TO BENDIX BRAKE COMPANY,` OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS IBRAKE-BACKING PLATE Application led March 23, 1927. Serial No. 177,546.

This invention relates to brakes, and is ila crank-and-lever control for a brake. The lustrated as embodied in brake mechanism brake includes a drumAlS rotating with the for a front automobile wheel. An object wheel, the hub of which is shown at 20. of the invention is to provide an improved At the open side of drum 18 is a novel back I backing plate serving to support the brake ing plate 22, formed with a central opening 55 itself, and also serving to close the open side 24 for knuckle 12, and with openings 26 for of the brake drum. bolts 28 securing the backing plate to the One feature ofthe invention has to do with knuckle. The plate may have at its edge a arranging the plate to permit the use of cerflange encircling the edge of the drum. The

tain types of brake-operating means, for explate also has an opening 30 for an adjusteo ample the 'well-known .crank-and-lever ing device 32 of the brake, and openings 34 type, on a brake for a front wheel having its for the anchors 36 of the brake shoes, parts king-pin set well inside the brake drum, by of two of which appear at 38 in Figure 2. providingatransverse depression in the plate The illustrated brake is fully described in for the joint between the crank and the lever, Patent No. 1,567,716, granted Bendix Brake 65 or their equivalents, which joint should be Company on December 29, 1925, on an appliimmediately in line with the king-pin. cation of A. Y. Dodge.

Another feature relates to mounting the The brake is applied by any suitable means, brake-applying device, or some other subsuch as a double cam 40 integral with a shaft 2 assembly of the brake, on the backing plate 42 journalled in a bracket or support 44 70 asl a unit, by providing it with fastenings asswhich, in the assembled brake, engages the ining through the narrow ends of key olener face of the backing plate. Shaft 42 shaped slots or openings in the backing plate, passes through an opening 46 in the backing and with nuts or other securing means small plate, and -is provided wlth a crank or arm enough to pass through the larger ends of the 48 engaged bythe operating lever 16. 75

^ slots and adapted to be clamped against the It is important that the joint between lever plate after the fastenings have been shifted to 16 and crank 48, or their equivalents, should the narrow ends of the slots. come above and directly in line with the king- The above and other objects and features of pin 14 when the brake is applied. One feathe invention', including various novel comture of the invention relates to making this 80 binations of parts and desirable particular possible when the front wheel mounting is constructions, will be apparent from the folsuch thatthe king-pin 16 comes well inside lowing description of one illustrative em- -the.drum, by providing a transverse depres- 1 bodiment shown in the accompanying drawsion or groove 50 in the backing plate, into ing,in which: which the end of lever 16 and the curved 85 Figure l is a perspective view of the brake lever end of crank 48 may project. mechanism of one front wheel of an automo- One important feature relates to permitbile, looking toward the rear of the car; tin a complete sub-assembly of the brake, Figure 2 is a partial section through the suc i as the sub-assembly including cam 40 applying means of the brake, on the line 2-2 and shaft 42 and crank 48 and support 44, to 90 of Figure 1; be mounted on the backing plate 22 without Figure 3 is an elevation of the novel backremoving or attaching any nuts or other ing plate; and extra parts.

Figure 4 is a partial vertical sectionl T0 this end, the nuts 52,l or equivalent through the upperpart of the plate, on the securing means, are mounted on fastenings 95 line 4-4 of Figure 3. or studs 54 of such size as to t the narrow The mechanismshown in Figure 1 includes ends of key-hole shaped openings or slots 56, a front axle 10, to which a knuckle 12 is or are provided with collars 58 which fit swivelled by a king-pin 14 or the like, and on such openings and which are illustrated as 5 which is pivoted a lever 16 forming part of integral with bracket 44. Nuts 52 are sm'all 10o enough to be passed through the large ends of the openings 56, and crank 48 can be passed through opening 46, whereupon the sub-assembly is yshifted to the right and nuts 52 are tightened up against the collars 58p. Preferably this does not clamp bracket 44 so tight but that it can shift to permit cam 40 to center itself.

While one illustrative embodiment has been described in detail, it is not my intention to limit the scope of the invention to that particular embodiment, or otherwise than by the terms of the appended claims.

I claim:

1. A backing plate for a brake having openings which are relatively large at one side and narrow at the other, to form in effeet keyhole-shaped slots, in combination with brake means having a part including fastenings itting the narrow ends of the openings and securing means on the fastenings which can be passed through the lar e ends of the openings but not through tlgle narrow ends.

2. A backing plate for a brake having openings which are relatively large at one side and narrow at the other, to form in effect keyhole-shapedslots, in combination with brake means having a part including fastenings fittings the narrow ends of the openings and nuts threaded on the ends of the fastenings and which can be passed through the large ends of the openings but not through the narrow ends.

3. A backing plate for a brake having openings which are relatively large at one side and narrow at the other, to form in effeet keyhole-shaped slots, in combination with brake means having a brake-applying device extending through the backing plate adjacent said openings and with a portion engageable with the inner face of the backing plate and including fastenings fitting the narrow ends of the openings and nuts threaded on the ends of the fastenings and which can be passed through the large ends ofdthe openings but not through the narrow en s.

4. A backing plate for a brake having openings which are relatively large at one side and narrow at the other, to form in effect keyhole-shaped slots.

In testimony whereof, I have hereunto signed my name.

VINCENT BENDIX. 

